St. Patrick's Day Parade in Chicago

John J. Kim / Chicago Tribune

Illinois politicians, including House Speaker Michael Madigan, second from right, and Mayor Rahm Emanuel, center, march in the St. Patrick's Day Parade on March 12, 2016, along Columbus Drive in Chicago.

Illinois politicians, including House Speaker Michael Madigan, second from right, and Mayor Rahm Emanuel, center, march in the St. Patrick's Day Parade on March 12, 2016, along Columbus Drive in Chicago.

Women pour alcohol into a pedestrian's mouth as their "party bus" is stopped March 12, 2016, in the 200 block of North Michigan Avenue after the St. Patrick's Day Parade along Columbus Drive in Chicago.

Women pour alcohol into a pedestrian's mouth as their "party bus" is stopped March 12, 2016, in the 200 block of North Michigan Avenue after the St. Patrick's Day Parade along Columbus Drive in Chicago.